The invention relates to the technical field of the braking of electric locomotives, particularly to a braking system of an electric locomotive based on a high-power inverter. Through a vehicle control unit, an inversion feedback system of regenerated energy is united with an eddy braking system together. The inversion feedback system of regenerated energy is adopted, when the electric locomotive brakes, a regeneration braking system preferentially supplies energy needed by eddy braking, and returns surplus energy to an electric grid. The braking system solves the problems that when only the inversion feedback system of regenerated energy is adopted, the utilizing rate of the energy returned to a traction network is low, and the voltage of the electric grid is increased, so that the power supply equipment of power substations is influenced; when only the eddy braking system is adopted, because the kinetic energy of a moving object is converted into heat energy and dissipates during eddy braking, a braking device warms, and demagnetization occurs on a permanent magnet, so that the braking fails. Through the adoption of the braking system disclosed by the invention, loading of the electric grid and loading of elements can be relieved, and besides, the utilizing rate of energy is increased, and the safety performance of the braking of the electric locomotive can be improved.
Braking system of electric locomotive based on high-power inverter
2015-06-10
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
High power inverter controlled electric locomotive
Tema Archive | 1991
|Electric control braking device applied to locomotive braking system
European Patent Office | 2021
|